The Certified Ethical Hacker (CEH) exam was developed by the International Council of E-Commerce Consultants (EC-Council) to provide an industry-wide means of certifying the competency of security professionals. The CEH certification is granted to those who have attained the level of knowledge and security skills needed to perform security audits and penetration testing of systems and network. The CEH exam is periodically updated to keep the certification applicable to the most recent hacking tools and vulnerabilities. This is necessary because a CEH must be familiar with the latest attacks and exploits. The most recent revisions to the exam as of this writing are found in version 6. The version 6 exam objectives are reflected in this book.